deport three other MSG examples

[simgrid.git] / teshsuite / msg / plugin-hostload / plugin-hostload.c

diff --git a/teshsuite/msg/plugin-hostload/plugin-hostload.c b/teshsuite/msg/plugin-hostload/plugin-hostload.c
new file mode 100644 (file)
index 0000000..717c54b
--- /dev/null
+++ b/teshsuite/msg/plugin-hostload/plugin-hostload.c
@@ -0,0 +1,88 @@
+/* Copyright (c) 2007-2010, 2013-2015. The SimGrid Team.
+ * All rights reserved.                                                     */
+
+/* This program is free software; you can redistribute it and/or modify it
+ * under the terms of the license (GNU LGPL) which comes with this package. */
+
+#include "simgrid/msg.h"
+#include "simgrid/plugins/load.h"
+
+XBT_LOG_NEW_DEFAULT_CATEGORY(msg_test, "Messages specific for this msg example");
+
+static int execute_load_test(int argc, char* argv[])
+{
+  msg_host_t host = MSG_host_by_name("MyHost1");
+
+  XBT_INFO("Initial peak speed: %.0E flop/s; number of flops computed so far: %.0E (should be 0)",
+           MSG_host_get_speed(host), sg_host_get_computed_flops(host));
+
+  double start = MSG_get_clock();
+  XBT_INFO("Sleep for 10 seconds");
+  MSG_process_sleep(10);
+
+  XBT_INFO("Done sleeping %.2fs; peak speed: %.0E flop/s; number of flops computed so far: %.0E (nothing should have "
+           "changed)",
+           MSG_get_clock() - start, MSG_host_get_speed(host), sg_host_get_computed_flops(host));
+
+  // Run a task
+  start            = MSG_get_clock();
+  msg_task_t task1 = MSG_task_create("t1", 100E6, 0, NULL);
+  XBT_INFO("Run a task of %.0E flops", MSG_task_get_flops_amount(task1));
+  MSG_task_execute(task1);
+  MSG_task_destroy(task1);
+
+  XBT_INFO("Done working on my task; this took %.2fs; current peak speed: %.0E flop/s; number of flops computed so "
+           "far: %.0E",
+           MSG_get_clock() - start, MSG_host_get_speed(host), sg_host_get_computed_flops(host));
+
+  // ========= Change power peak =========
+  int pstate = 2;
+  sg_host_set_pstate(host, pstate);
+  XBT_INFO("========= Requesting pstate %d (speed should be of %.0E flop/s and is of %.0E flop/s)", pstate,
+           MSG_host_get_power_peak_at(host, pstate), MSG_host_get_speed(host));
+
+  // Run a second task
+  start = MSG_get_clock();
+  task1 = MSG_task_create("t2", 100E6, 0, NULL);
+  XBT_INFO("Run a task of %.0E flops", MSG_task_get_flops_amount(task1));
+  MSG_task_execute(task1);
+  MSG_task_destroy(task1);
+  XBT_INFO("Done working on my task; this took %.2fs; current peak speed: %.0E flop/s; number of flops computed so "
+           "far: %.0E",
+           MSG_get_clock() - start, MSG_host_get_speed(host), sg_host_get_computed_flops(host));
+
+  start = MSG_get_clock();
+  XBT_INFO("========= Requesting a reset of the computation counter");
+  sg_host_load_reset(host);
+  XBT_INFO("Sleep for 4 seconds");
+  MSG_process_sleep(4);
+  XBT_INFO("Done sleeping %.2f s; peak speed: %.0E flop/s; number of flops computed so far: %.0E",
+           MSG_get_clock() - start, MSG_host_get_speed(host), sg_host_get_computed_flops(host));
+
+  // =========== Turn the other host off ==========
+  XBT_INFO("Turning MyHost2 off, and sleeping another 10 seconds. MyHost2 computed %.0f flops so far.",
+           MSG_host_get_computed_flops(MSG_host_by_name("MyHost2")));
+  MSG_host_off(MSG_host_by_name("MyHost2"));
+  start = MSG_get_clock();
+  MSG_process_sleep(10);
+  XBT_INFO("Done sleeping %.2f s; peak speed: %.0E flop/s; number of flops computed so far: %.0E",
+           MSG_get_clock() - start, MSG_host_get_speed(host), sg_host_get_computed_flops(host));
+  return 0;
+}
+
+int main(int argc, char* argv[])
+{
+  sg_host_load_plugin_init();
+  MSG_init(&argc, argv);
+
+  xbt_assert(argc == 2, "Usage: %s platform_file\n\tExample: %s msg_platform.xml\n", argv[0], argv[0]);
+
+  MSG_create_environment(argv[1]);
+  MSG_process_create("load_test", execute_load_test, NULL, MSG_get_host_by_name("MyHost1"));
+
+  msg_error_t res = MSG_main();
+
+  XBT_INFO("Total simulation time: %.2f", MSG_get_clock());
+
+  return res != MSG_OK;
+}